BEST ONE SUBMERSIBLE SUMP PUMPS EPA. Page Features & Applications 100 Exploded View 101 Pump & Motor Specifications 102 Selection Chart / Type key 103

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2 CONTENTS -SPECIFICATIONS Page Features & Applications 100 Exploded View 101 Pump & Motor Specifications 102 Selection Chart / Type key 103 -PERFORMANCE CURVES Performance Curve Best One 200 Performance Curve Best One Vox 201 -CONSTRUCTIONS Constructions - Sectional View 300 Constructions - Sectional View Table 301 Constructions - Mechanical Seal and Bearings 302 Constructions - Diagrams and Electrical Connections 303 Constructions - Installation 304 -DIMENSIONS Dimensions and Weight 400 Packing Dimensions and Weight 401 -TECHNICAL DATA Technical Data 500 Minimum Suction System 501

3 SUBMERSIBLE SUMP PUMPS FEATURES AND APPLICATIONS Best One MA Automatic pump with Float Switch Best One MS Automatic pump with Magnetic Switch Best One M Best One Vox MA Best One Vox M Manual Pump Automatic pump with Float Switch Manual Pump Domestic sump pump manufactured in 304 stainless steel with a semi open impeller (Best One) and a Semi Vortex impeller (Best One Vox).Suitable for many light dewatering applications, including: Draining wells, basements, cellars, etc. Emptying of tanks & drums, general stransfer of water. Maximum solids handlng 10mm (Best one) 20mm (Best One Vox) Maximum liquid Temperature: 50 C Maximum submergence: 5m Pump casing: 304 Stainless Steel Impeller: 304 Stainless Steel Outer casing: 304 Stainless Steel Shaft: 303 Stainless Steel Motor Frame: 304 Stainless Steel, Steel Motor Cap: 304 Stainless Fasteners: 304 Stainless Steel Seal: Carbon/Ceramic Mechanical seal in oil chamber, upper lip seal Air Filled, dry submersible, 2 pole motor Insulation class F IPX8 protection 50 Hz, 1 phase 240 volt in built overload protection 5m of cable (with plug) 32mm discharge 0.25 kw motor Single phase, automatic, manual versions and magnetic switch (Best One MS only) available. 100

4 EXPLODED VIEW MA (float switch) MS (magnetic switch) 101

5 SPECIFICATION PUMP Type of liquid Clear water (Clean water for MS version) Liquid Max temperature [ C] 50 Handled 10 Max solids size [mm] 20 (for Vortex version) Maximum immersion [m] 5 Semi-open centrifugal type () Impeller Vortex type ( VOX) Construction Shaft seal type Oil lubricated mechanical seal (pump side) + lip seal (motor side) Bearing Sealed ball bearing Pipe Suction Strainer Connection Discharge nozzle [inch] G1¼ : UNI ISO 228 Pump casing AISI 304 Impeller AISI 304 Mechanical seal: Ceramic/Carbon/NBR Shaft seal Material Lip seal: NBR Casing cover AISI 304 Shaft AISI AISI 303 ceramic coated shaft sleeve Lubricating liquid White mineral oil: Esso Marcol 152 Applicable standard of test ISO 9906 Annex A MOTOR Type Submersible dry type No. of Poles 2 Rotation speed [min -1 ] 2800 Insulation Class F Protection degree IP X8 Power rating [kw] 0.25 [HP] 0.33 Frequency [Hz] 50 Voltage [V] 230 ±10% Capacitor Built in Over load protection Built in Casing material AISI 304 Switch float MA version (no maintenance required) magnetic MS version (maintenance required) Float/magnetic switch material H07RN-F cable size 3G1 - length [m] 5 (only for internal usage) Power cable material H05RN-F size 3G0.75 Cable entry Cable Gland 102

6 SELECTION CHART & TYPE KEY Type pumps Q=Capacity Power l/min m³/h 0 1,2 2,4 4,8 7,2 9,6 10,2 kw HP H=Total manometric head in meters M 0,25 0,33 9,0 8,3 7,8 6,3 4,5 2,4 1,8 VOX M 0,25 0,33 6,5 6,0 5,6 4,8 3,5 2,0 1,5 TYPE KEY VOX M M - Single phase MA - With float switch MS - With magnetic switch Vortex version Model 103

7 PERFORMANCE CURVE Curve specifications The specifications below qualify the curves shown on the following pages. Tolerances according to ISO 9906 Annex A The curves refer to effective speed of asynchronous motors at 50 Hz Measurements were carried out with clean water at 20 C of temperature and with a kinematic viscosity of ν = 1 mm 2 /s (1 cst) In order to avoid the risk of over-heating, the pumps should not be used at a flow rate below 10% of best efficiency point. Symbols explanation: Q = volume flow rate H = total head 200

8 PERFORMANCE CURVE VOX Curve specifications The specifications below qualify the curves shown on the following pages. Tolerances according to ISO 9906 Annex A The curves refer to effective speed of asynchronous motors at 50 Hz Measurements were carried out with clean water at 20 C of temperature and with a kinematic viscosity of ν = 1 mm 2 /s (1 cst) In order to avoid the risk of over-heating, the pumps should not be used at a flow rate below 10% of best efficiency point. Symbols explanation: Q = volume flow rate H = total head 201

9 CONSTRUCTION SECTIONAL VIEW 300

10 CONSTRUCTION SECTIONAL VIEW TABLE N PART NAME MATERIAL DIMENSIONS STANDARD Q.ty 1 Suction cover EN (AISI 304) Casing cover EN (AISI 304) Shaft with rotor EN (AISI 303) Impeller EN (AISI 304) Mechanical seal [1] [1] [1] Motor frame with stator EN (AISI 304) Motor cover EN (AISI 304) Lower ball bearing Upper ball bearing Adjusting ring Capacitor O-ring NBR 159,5x O-ring NBR 88,5x3, O-ring NBR 75,87x2, O-ring NBR 75,87x2, Washer EN (AISI 304) 12x21x Seeger ring Carbon steel TC80 12 UNI Impeller nut A2-70 UNI 7323 M6 UNI Pump casing EN (AISI 304) Strainer EN (AISI 304) Upper bearing housing EN 1706 AC D Lower bearing housing EN 1706 AC D Terminal insulating base PA Terminal insulating box PA Power cable Switch [2] [3] Spacer EN (AISI 304) Power cable connector OT 58 UNI Nickel-plated Brass Switch cable connector [2] OT 58 UNI Nickel-plated Brass Washer EN (AISI 304) Lip seal NBR 22x12x Shaft sleeve EN (AISI 303) ceramic coated O-ring NBR 6,07x1, O-ring NBR 4,48x1, Power cable connector NBR Switch cable connector [2] NBR O-ring NBR 4,48x1, Handle PP Screw A2-70 UNI 7323 M5x6 UNI Screw A2-70 UNI 7323 M5x6 UNI Screw A2-70 UNI 7323 M5x6 UNI Screw A2-70 UNI 7323 M5x6 UNI Screw A2-70 UNI 7323 M5x6 UNI Screw A2-70 UNI 7323 M5x6 UNI Screw A2-70 UNI 7323 M4x6 UNI Washer PA6 5,5x10x Washer Zinced Steel 4 UNI Washer EN (AISI 304) 13,4x15,9x Washer [2] EN (AISI 304) 13,4x15,9x Ground wire Strain relief Strain relief [2] Oil Esso Marcol cc 300 Minimum suction system [4] Thermoplastic [1] See pag. 303 [2] Only for automatic version [3] It could be floating or magnetic type [4] OPTIONAL See pag

11 CONSTRUCTION MECHANICAL SEAL REF PART NAME MATERIAL A Rotary seal ring Carbon graphite B Stationary seal ring Ceramic C Gasket NBR D Bellows NBR F Self driving spring EN (AISI 304) G Frame EN (AISI 304) H Retainer ring EN (AISI 304) L Spring EN (AISI 302) M Lip NBR BEARINGS Type pumps Lower side Ball Bearing Upper side M 6200 ZZ C ZZ C3 302

12 CONSTRUCTION SINGLE PHASE MOTOR DIAGRAM AND ELECTRIC CONNECTIONS WITHOUT FLOAT SWICH WITH FLOAT SWICH 303

13 INSTALLATION MA/ONE VOX MA MS Pump A B MA VOX MA

14 DIMENSION AND WEIGHT PUMP MA/ONE VOX MA MS Type Pumps Dimensions [mm] H H1 S Weight [kgf] 4.3 M MA 4.6 MS 4.8 VOX 4.4 VOX M VOX MA

15 DIMENSION AND WEIGHT PACKING Type Pumps Dimensions [mm] X Y Z Weight [kgf] M 4.9 MA 5.1 MS VOX M 5.0 VOX MA

16 TECHNICAL DATA ELECTRIC DATA Type pumps kw HP Capacitor Single Phase μf Vc [V] Input [kw] Full load current [A] Locked rotor current [A] Best One M 0,25 0, , 51 2,3 5,8 Best One Vox M 0,25 0, ,50 2,2 5,6 500

17 OPTIONAL MINIMUM SUCTION SYSTEM LEVEL Minimum starting suction level Minimum suction level capability 10 mm 3 mm COMPATIBILITY Version Type pumps Best One Best One Vox 1~ M MA MS 5 01